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The resulting standards are named 2.5GBASE-T and 5GBASE-T. [ 1 ] [ 2 ] [ 3 ] NBASE-T refers to Ethernet equipment that supports speeds of at least 2.5 Gbit/s and sometimes 5 or 10 Gbit/s, and that can automatically use training to operate at the best speed supported by the cable quality. [ 4 ]
5GBASE-T: 100 m of Cat 6 2.5GBASE-T1: 802.3ch-2020 (149) use a single, bi-directional twisted pair in full duplex mode only, intended for automotive and industrial applications 5GBASE-T1 Fiber-optical cable 2.5GBASE-AU: 802.3cz-2023 (166) undefined: up to 40 m of OM3 for automotive 5GBASE-AU: up to 40 m of OM3 for automotive Other 2.5GBASE-KX
The most popular variant, 1000BASE-T, is defined by the IEEE 802.3ab standard. It came into use in 1999, and has replaced Fast Ethernet in wired local networks due to its considerable speed improvement over Fast Ethernet, as well as its use of cables and equipment that are widely available, economical, and similar to previous standards.
Fixed an equation in the publication of 10GBASE-T (released as 802.3-2005/Cor 2) 802.3ax 2008-11 Link aggregation – moved to and approved as 802.1AX: 802.3-2008 2008-12 (802.3ay) A revision of the base standard incorporating the 802.3an/ap/aq/as amendments, two corrigenda and errata 802.3az: 2010-09 Energy-Efficient Ethernet: 802.3ba: 2010-06
[29] [30] Higher speed standards, 2.5GBASE-T up to 40GBASE-T [31] running at 2.5 to 40 Gbit/s, consequently define only full-duplex point-to-point links which are generally connected by network switches, and do not support the traditional shared-medium CSMA/CD operation.
4.5G provides better performance than 4G systems, as a process step towards deployment of full 5G capability. [citation needed] The technology includes: LTE Advanced Pro; MIMO; 4.5G is marketed by AT&T as 5GE.
The physical coding sublayer (PCS) is a networking protocol sublayer in the Fast Ethernet, Gigabit Ethernet, and 10 Gigabit Ethernet standards. It resides at the top of the physical layer (PHY), and provides an interface between the physical medium attachment (PMA) sublayer and the media-independent interface (MII).
Cellular network standards and generation timeline. This is a comparison of standards of wireless networking technologies for devices such as mobile phones.A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1979 and the early to mid-1980s.